GATEWAY DEVICE, MOBILE COMMUNICATION SYSTEM, MOBILE TERMINAL, PACKET TRANSFER CONTROL METHOD, CONTROL METHOD OF MOBILE TERMINAL, AND NON-TRANSITORY COMPUTER READABLE MEDIUM
First Claim
1. A gateway device located at a boundary between a radio access network to conduct wireless communication with a mobile terminal or a core network connected to the radio access network and an external network, comprising:
- a channel management unit that terminates a logical downlink channel for transmitting a packet to the mobile terminal and a logical uplink channel for receiving a packet from the mobile terminal;
a pass-through packet determination unit that controls whether to transfer a packet arriving from the external network to the downlink channel based on a transfer policy; and
a transfer policy control unit that changes the transfer policy based on a signal arriving from the mobile terminal,wherein the transfer policy control unit changes the transfer policy to enable transfer of a multicast packet or a broadcast packet to the mobile terminal by the downlink channel in response to receiving from the mobile terminal a signal preliminarily specified as a trigger to start transfer of a multicast packet or a broadcast packet to the mobile terminal by the downlink channel.
2 Assignments
0 Petitions
Accused Products
Abstract
A pass-through packet determination unit (112) of an anchor GW 100A controls whether or not to transfer a Layer 3 packet arriving from an external network (20) to a downlink channel set up with a mobile terminal (700) based on a transfer policy. Further, a transfer policy control unit (111) changes the transfer policy to enable transfer of a multicast packet or a broadcast packet to the mobile terminal (700) by the downlink channel in response to receiving from the mobile terminal (700) a Layer 3 packet preliminarily specified as a trigger to start transfer of a multicast packet or a broadcast packet to the mobile terminal (700) by the downlink channel.
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Citations
45 Claims
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1. A gateway device located at a boundary between a radio access network to conduct wireless communication with a mobile terminal or a core network connected to the radio access network and an external network, comprising:
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a channel management unit that terminates a logical downlink channel for transmitting a packet to the mobile terminal and a logical uplink channel for receiving a packet from the mobile terminal; a pass-through packet determination unit that controls whether to transfer a packet arriving from the external network to the downlink channel based on a transfer policy; and a transfer policy control unit that changes the transfer policy based on a signal arriving from the mobile terminal, wherein the transfer policy control unit changes the transfer policy to enable transfer of a multicast packet or a broadcast packet to the mobile terminal by the downlink channel in response to receiving from the mobile terminal a signal preliminarily specified as a trigger to start transfer of a multicast packet or a broadcast packet to the mobile terminal by the downlink channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A mobile communication system comprising:
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a radio access network to conduct wireless communication with a mobile terminal; a core network connected to the radio access network; and a gateway device located at a boundary between the radio access network or the core network and an external network and including an interface connectable to the external network, wherein the gateway device includes; a channel management unit that terminates a logical downlink channel for transmitting a packet to the mobile terminal and a logical uplink channel for receiving a packet from the mobile terminal; a pass-through packet determination unit that controls whether to transfer a packet arriving from the external network to the downlink channel based on a transfer policy; and a transfer policy control unit that changes the transfer policy based on a signal arriving from the mobile terminal, wherein the transfer policy control unit changes the transfer policy to enable transfer of a multicast packet or a broadcast packet to the mobile terminal by the downlink channel in response to receiving from the mobile terminal a signal preliminarily specified as a trigger to start transfer of a multicast packet or a broadcast packet to the mobile terminal by the downlink channel. - View Dependent Claims (14, 15, 16, 17, 21, 22, 23, 24)
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19. The mobile communication system according to claim 18, wherein the transfer policy control unit detects that transfer of a multicast packet or a broadcast packet to the mobile terminal is not needed by detecting that a predetermined packet from among a packet flow in an uplink direction transmitted from the mobile terminal to the external network.
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20. The mobile communication system according to claim 18, wherein the transfer policy control unit detects that transfer of a multicast packet or a broadcast packet to the mobile terminal is not needed based on deletion of the downlink channel and the uplink channel.
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25. A mobile terminal that conducts communication with an upper network including a radio base station, comprising:
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a radio interface wirelessly connectable to the radio base station; a communication control unit that transmits and receives a packet to and from the upper network via the radio interface; and a packet transfer request unit that transmits a policy setting request to the upper network via the communication control unit and the radio interface, wherein the policy setting request is transmitted to request the upper network to transfer a multicast packet or a broadcast packet arriving at the upper network from an external network from the upper network to the mobile terminal, the policy setting request contains transfer policy information for specifying a multicast packet or a broadcast packet requested to be transferred, and the transfer policy information contains protocol information of an upper layer than Layer 3 indicating an attribute of the multicast packet or the broadcast packet requested to be transferred. - View Dependent Claims (26, 27, 28, 29)
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30. A packet transfer control method at a boundary between a radio access network to conduct wireless communication with a mobile terminal or a core network connected to the radio access network and an external network, comprising:
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determining whether a signal preliminarily specified as a trigger to start transfer of a multicast packet or a broadcast packet to a downlink channel for transmitting a packet to the mobile terminal is received from the mobile terminal via an uplink channel; and changing a packet transfer policy from the external network to the downlink channel to enable transfer of a multicast packet or a broadcast packet arriving from the external network to the mobile terminal in response to receiving the preliminarily specified signal. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A control method of a mobile terminal that conducts communication with an upper network including a radio base station, the method comprising:
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transmitting a policy setting request to the upper network via a radio interface wirelessly connectable to the radio base station, wherein the policy setting request is transmitted to request the upper network to transfer a multicast packet or a broadcast packet arriving at the upper network from an external network from the upper network to the mobile terminal, the policy setting request contains transfer policy information for specifying a multicast packet or a broadcast packet requested to be transferred, and the transfer policy information contains protocol information of an upper layer than Layer 3 indicating an attribute of the multicast packet or the broadcast packet requested to be transferred. - View Dependent Claims (43)
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44. A non-transitory computer readable medium storing a program causing a computer to execute packet transfer control at a boundary between a radio access network to conduct wireless communication with a mobile terminal or a core network connected to the radio access network and an external network, the transfer control comprising:
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determining whether a signal preliminarily specified as a trigger to start transfer of a multicast packet or a broadcast packet to a downlink channel for transmitting a packet to the mobile terminal is received from the mobile terminal via an uplink channel; and changing a packet transfer policy from the external network to the downlink channel to enable transfer of a multicast packet or a broadcast packet arriving from the external network to the mobile terminal in response to receiving the preliminarily specified signal.
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45. A non-transitory computer readable medium storing a program causing a computer to execute control related to a mobile terminal that conducts communication with an upper network including a radio base station, the control comprising:
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transmitting a policy setting request to the upper network via a radio interface wirelessly connectable to the radio base station, wherein the policy setting request is transmitted to request the upper network to transfer a multicast packet or a broadcast packet arriving at the upper network from an external network from the upper network to the mobile terminal, the policy setting request contains transfer policy information for specifying a multicast packet or a broadcast packet requested to be transferred, and the transfer policy information contains protocol information of an upper layer than Layer 3 indicating an attribute of the multicast packet or the broadcast packet requested to be transferred.
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Specification